Work Day 25th May 2019

T86
Pock-marked metal on the Ward Leonard supporting shelf has been filled and the shelf primed ready for refitting the Ward Leonard trays. It is important to eliminate depressions in all metalwork so if at a future date the radar is exposed to the elements there will be no water holding on the metal work. See accompanying photo of the primed Ward Leonard shelves on the rear of the T86 cabin.

T86 WL Shelf Primed wm.jpg

LCP

A check was carried out of the fan trays. The fans are now a common failure point but they are an important part of keeping the Argus computer serviceable and the simulator running. Fan reliability is an issue, as identified previously, but has to be expected due to age and the poor environment the LCP was stored in. The Argus fan tray  and the fan assembly under the CHARGE cards (display system) have been removed for repair. Replacement fans are still available! See accompanying photo. Spot the RAF screwdriver, found in the bottom of a rack i9n the T86.

Fan Trays for Repair 25_05_2019 wm.jpg

For those who worked on or with the MK2A LCP, see the accompanying photo taken on May 25th of the display system. The start-up screen here is displayed before OPS or SIMULATOR is selected by the Engagement Controller (E.C.), we can only select SIMULATOR of course!LCP Display Console 2 25_05_2019 wm.jpg

Away from Cosford – 2nd Line
We are always on the lookout for reasonably priced spares for those items that are still available. Obsolete electronic components often appear on eBay, or with specialist electronic suppliers, but usually at silly (high) prices. Exceptions do occur and one recent ‘find’ was a new (old stock) Archive 2150L tape drive. See accompanying photo. An important spare to have as one of our tape drives has already failed. The Archive tape drive is an essential  component of the Argus computer system as all software is stored on and backed up to ¼” tape (DC600A and DC6150).

Archive 2150L Tape Drive wm.jpg

It is vital for us to build up a spares stock of components including processor chips, i.e. 8086, Z80 and 2901 bit slices as well as the less esoteric such as TTL logic and memory ICs.

A reminder that we are totally self-funded so beg that you please have a look in your stash of ‘might come in useful one-day’ components and see if there are any can you can release to the Bloodhound cause; we thank you in advance.

Pete H.